Activity

KK

Ok thanks , new parts req:

Full gasket set

Cam chain

Std rings (78mm)

Gudgeon pin clips

That will let me get bottom end back together and make room on bench,

Not stripped head yet, so won’t know if valves are 100% till then and won’t know if I need shims till head is on so hold them for now but good to know price and availability.

Used…[Read more]

It’s amazing what a wash can do. Still a lot of work to be done though.

Spoke to Phil at Zpower and he doesn’t think he has the valves but will check Monday and let me know. If you’ve seen valves I’m guessing the will be for a 4 pot but’s let’s see.

If you send me a definitive list of what you want I will put a price together. I definitely have…[Read more]

dry build just about finished before I pulled the engine out. Forks were first job, they are 10 inch over triumph t140 I couldn’t find replacements anywhere but found a place in Liverpool that stripped and re hard chromed them then ground to size plus straightened them, probably better than new now. I saw valves on z powers website I think, not…[Read more]

Hi Rob

They don’t need the rings. Another option you have is a firm in Manchester called NRP. You send them your slides and they fit the diaphrams for you. It does cost more, think it’s around £45 each.

Like the picture. What’s it like riding with those tyres on?

I’ve sent a PM about the rubbers.

Cheers

KK

My God Karl you’ve got your work cut out with that one but full respect for taking it on. Think I remember seeing it on ebay? For your information the engine is a 1976/1977 B1 or B2.

If I have read your post right you have managed to get all you need except for rings. That I am impressed with but I am surprised you say Zpower have valves. I am…[Read more]

KK

Engine now stripped and cases cleaned out nothing else wrong found, lumpy bits in sump mainly silicate and gasket, very little metal. I have since spoken to fella who repairs blown up speedway engines, he thinks shells may have life left in them, suggested gentle polish with fine scotchbright and thin oil. Parts I will need, full gasket set,…[Read more]

Cheers for that- yeah he is the guy i had taken a look at.

Do they not supply new plastic discs like was on them originally?

what would you want for the inlets- will try upload pictures later

Hi Rob

These are the diaphrams you need Diaphrams

I have some good used carb to head rubbers if you are interested. I can also supply NEW airbox to carb rubbers if you need those too.

Cheers

KK

Hi Rob great to have you on board.

It’s good to see your getting use of your twin and now making her better than she was. Hopefully this site can help you get there.

Please check out the shop for any parts you need. The stock shown is by far not everything I can supply so if you don’t see it please just ask.

Would be nice to see some pictures…[Read more]

Getting it ready for when we can start riding again! Bring it on eh?

Blimey Karl that is a very sorry state engine.

As you suggest much of it is recoverable but it raises suspicion with the whole motor. The sludge is definitely a mixture of oil and water and the main question is what other bits has it damaged. Looking at the oil filter gauze there appear to be shards of metal which you need to determine where they…[Read more]

I have now stripped engine down to the crank. I will attempt to attach a few pictures.  I think the cam chain is worn out and that and the buthchers handiwork brought the bike to a halt. Engine sump was full of sludge, guessing condensation/oil mix but nothing appears broken apart from one cracked oil scraper ring. I have a question about the…[Read more]

Hi Karl and welcome to the forum.

I have moved your post to the forum so people can see it. The forum is the place for these discussions.

The situation you describe are not any normal thing I have ever come across and I think you are lucky if there is no permanent damage done to the engine. You should NOT run the engine without fitting the…[Read more]